Workmaster 55 wont start

longlane · Jan 7, 2020

I have a 2013 New Holland Workmaster 55.
The tractor was driven in the shed about 3 months ago.
Went out to start it and she wont start.
Was turning a little slow I thought, so I charged up the battery and cleaned the cables.
Still wont start. Turns over really good just wont hit off.
I checked all the safety switches, still no go.
Fuel filter was changed in July 2019.
Only 485 hrs. on the machine.

What's your thoughts?

Thanks!

Jerry/MT · Jan 7, 2020

longlane said:
I have a 2013 New Holland Workmaster 55.
The tractor was driven in the shed about 3 months ago.
Went out to start it and she wont start.
Was turning a little slow I thought, so I charged up the battery and cleaned the cables.
Still wont start. Turns over really good just wont hit off.
I checked all the safety switches, still no go.
Fuel filter was changed in July 2019.
Only 485 hrs. on the machine.

What's your thoughts?

Thanks!

Are you getting fuel to the injectors? is there a white mist coming out of the exhaust when you try to start? If not, then you're not getting fuel. Have you followed the owners manual starting procedure? Have you cracked the throttle open a bit? if you have a hydromechanical injector pump, the metering valve can stick after a period of non use. Do you have a solenoid shut off for the fuel at the injector pump? Is it opening when you turn on the key? if it isn't then make sure you have voltage at the connector. If it opens, then go on.

if you still are not seeing signs of fuel then see if there is fuel coming out of the tank to the fuel filter. It should CONTIUOUSLY gush out like a cow peein' on a flat rock. If it is intermittent or dribbles ,there is an obstruction at the tank outlet or in the outlet tube to the filter. If you have the requisite fuel flow, then reconnect the line and check for fuel out of the filter. Same indicator (continuous gush of fuel) otherwise the filter or the filter head is clogged. If the flow is good and you have a lift pump, make sure it is working and pumping flow to the injector pump (IP). if you have no fuel output from the lift pump. Some of these have a screen at the pump inlet so if yours does, make sure that screen isn't clogged.

Systematically go through these checks and try to find the problem.